Hundreds of graves were desecrated at the French Jewish cemetery at Sarre-Union, a commune in the Bas-Rhin region in Alsace in north-eastern France, French Jewish news site JSS News reported on Sunday.

In a letter published by the site, France’s Minister of Interior Bernard Cazeneuve condemned the attack “in the strongest terms” and described it as a “heinous act.”

“The Republic will not tolerate this new injury that harms the values ​​that all the French have in common,” Cazeneuve said, without providing further details on the “desecration.”

The attack is the latest of many in recent months as violence against Jews continues to escalate in the country and on the continent. The violence reached a bloody crescendo last month when four Jews were gunned down by an Islamist terrorist at the Hyper Cacher supermarket in Paris.

Widespread reports indicate that many Jews are planning to leave the country for Israel or elsewhere.